The new and first general counsel at Washington, D.C.-based Kit Check Inc.—a former in-house counsel with Atlanta corporate giants The Coca-Cola Co. and McKesson Corp.—says she wakes up every day feeling like she’s making a positive difference in the world.

Mialeeka Williams feels good about her company’s top product: software that allows hospitals to detect when medications go missing. They call it “combating drug diversion,” also known as theft.